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Invidia Downpipe Catted Divorced Wastegate w/ 2 Bungs

MODEL # INV HS08SW1DOC

$531.31


  • Q: invidia cated downpipe  edmg919 11 days ago

    i already have an invida q300 catback exhaust im looking to finally finish the set up other than the turbo gasket what eles would i need ?
    • 0 of 0 people found the following answer helpful

      A:  This would require an Accessport/custom tuning depending on the rest of your setup. To bolt it up, you'd just need a turbo to downpipe gasket.

      Marcus E. @ RallySport Direct 8 days ago  
        
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  • Q: Stock catback  KUTTER17 days ago

    Will this bolt up directly to my stock catback or do I need an adapter?
  • Q: Na  Na20 days ago

    Will I need any additional gaskets for my 2015 sti with and N1 invidia
  • Q: RallySport>SubbiSpeed lol  Eulises1 month ago

    Does this bolt on directly to the stock turbo with a gasket for a 2017 sti? Or do I also need an adapter?
  • Q: Catted Val’s cattless  Lapissti2 months ago

    How much quieter would these be over a cattless downpipe is there a huge difference between the two?
  • Q: any other parts needed?  wanabsti2 months ago

    I have a 2011 WRX with an Invidia N1 catback. Will I need an adapter to make this work? Also, do I need any additional gaskets that don't come with this kit?
  • Q: Fitment  scwwrx3 months ago

    Will this fit my nameless performance catback exhaust?
  • Q: Tomei Fitment  nikolasstathis517003 months ago

    If I purchase this with the Tomei catback, will I need to order anything in addition to be able to install? ie. Adapter/gaskets?
  • Q: Fitment   lippert13.ds148785 months ago

    I have a 2014 wrx with N1 race cat back. This down pipe will bolt up directly to the factory turbo? Without any problems?
    • 0 of 0 people found the following answer helpful

      A:  This is a direct bolt on for the factory turbo on your WRX, as well as any stock location aftermarket setups that retain the OEM exhaust housing outlet flange.

      Marcus E. @ RallySport Direct 5 months ago  
        
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  • Q: Fitment   Nathan6 months ago

    Will this bolt up to the invidia exhaust you have for sale part number HS08SW5GRT.
  • Q: Stock Exhaust  Drew6 months ago

    Does this downpipe hook up directly to a 2011 STI stock cat-back?
  • Q: HP  Xavier6 months ago

    Around how much HP/WHP will this add? Will be getting a protune.
    • 0 of 1 people found the following answer helpful

      A:  As with any part, we will not have a guaranteed hp/whp gain number, as it all depends on supporting mods, tuner, and how healthy the car is.

      Devan M. @ RallySport Direct 6 months ago  
        
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  • Q: Fitment  Dominus8 months ago

    Hi RSD, I have a 2018 Sti. Will this Downpipe fit the Fujitsubo Authorize RM catback since the Fujitsubo’s piping diameter is 2.75” and this downpipe is 3”? Are there adaptors or anything needed to make it fit? Thank you
    • 0 of 0 people found the following answer helpful

      A:  We cannot confirm fitment with that catback, as far as the adaptor goes we do not have anything for a 2.75" exhaust.

      Devan M. @ RallySport Direct 8 months ago  
        
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  • Q: Fitment  Eddie F.12 months ago

    Will this downpipe fit with a MagnaFlow Competition Series Cat-Back System? With the rest of the engine being stock on a 2018 STI limited
    • 0 of 0 people found the following answer helpful

      A:  This downpipe is 3 inches in diameter, it will fit any 3" catback system without an adapter, you will simply need a 3" 2 bolt gasket.

      Christian B. @ RallySport Direct 10 months ago  
        
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  • Q: Invidia downpipe  Bonnie12 months ago

    Does this fit the JDM sti 2010 sedan?
  • Q: Emissions  Scoobiesquad12 months ago

    Will having this downpipe prevent me from passing smog in california?
  • Q: Compatibility  Scoobiesquad12 months ago

    I have the invidia gemini r400 exhaust for my 2013 sti and i just ordered a cobb access port v3 and cobb sf short ram intake. Was wondering if this downpipe was optimal for my build and if there are additional parts like gaskets that i need for instalment? Thank you
    • 0 of 0 people found the following answer helpful

      A:  This would be an option you would have. Keep in mind Cobb won't have an OTS map for this downpipe.

      Luis L. @ RallySport Direct 10 months ago  
        
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  • Q: Which tune on accessport  TopGun9112 months ago

    Adding this to my n1 dual single tip catback and adding a cobb cold air filter. Which tune should I use on the access port? Thanks
  • Q: Part number   Paradise_171 year ago

    I need the part numbers for the turbo to downpipe gasket and from the end of the downpipe to exhaust gasket for replacement i have this downpipe and indivia n1 dual burnt tips
    • 0 of 0 people found the following answer helpful

      A:  You will need part numbers GRM 022001 and GRM 028001 to replace the ones that were included in this kit.

      Jared A. @ RallySport Direct 1 year ago  
        
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  • Q: Extra bung plug for wideband sensor   TonyKeoWRX142 years ago

    What is the socket size to remove the bolt so I can install a wideband sensor for an AEM air/fuel gauge.
    • 0 of 0 people found the following answer helpful

      A:  It is either a 14 or 17. Almost positive it is a 14 but it should be among a set of metric wrenches.

      Tyler A. @ RallySport Direct 2 years ago  
        
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  • Q: installation  stiflow2 years ago

    just wondering if there were any installation videos of this
    • 0 of 0 people found the following answer helpful

      A:  I would refer to http://forums.nasioc.com/forums/showthread.php?t=2278415 to help with install.

      Jared A. @ RallySport Direct 2 years ago  
        
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  • Q: Invidia Part#: INV HS08SW1DOC  Subie3 years ago

    Have they confirmed the fitment for the 2016 Subaru WRX STI for this item, read many mixed reviews thanks.
  • Q: 2015 STI  Stephandoan3 years ago

    I have everything stock except intake and access port, do I need any adapters or gaskets for this down pipe? Thanks!
    • 0 of 0 people found the following answer helpful

      A:  You would need a 3" downpipe to stock catback adapter as well as a replacement donut gasket is recommended. This downpipe does not include the turbo to downpipe gasket so that is recommended. Another thing to consider would be the turbo heat shield, but the stock unit can be trimmed to fit around this bellmouth.

      Brady R @ RallySport Direct 3 years ago  
        
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  • Q: Gaskets!  jabad9783 years ago

    With purchasing this downpipe, I'm aware of needing to purchase a brand new gasket for turbo/downpipe but I'm wondering if i also have to purchase a new gasket from downpipe to an 3" aftermarket catback exhaust?? & would it be a donut gasket or regular exhaust gasket??
    • 0 of 0 people found the following answer helpful

      A:  It will depend on the size of the midpipe flange on your catback exhaust. If it is a 3" flange, you can use the included 3" 2 bolt gasket. If your exhaust is stock or uses a 2.5" flange, then I recommend getting a 3" downpipe to stock catback adapter and a new donut gasket. This adapter helps prevent leaks and allows you to use the OEM donut gasket.

      Josh P. @ RallySport Direct 3 years ago  
        
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  • Q: utah emmisions complient  chrisluke3 years ago

    will this downpipe pass utah emmisions test's and inspections?
    • 0 of 0 people found the following answer helpful

      A:  Because this downpipe replaces OEM Emissions Equipment, we must state that it is for off road use only. Please contact your local DOT or EPA for information regarding legality.

      Josh P. @ RallySport Direct 3 years ago  
        
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  • Q: California   M818209 3 years ago

    Is this downpipe California state legal?
  • Q: compatibility  mikiem3 years ago

    Hello, so I purchased this downpipe as well as an aem cold air intake. A professional tuner told me that this downpipe along with the aem cold air intake would cause boost creep. Is this true? He told me that I would have to buy an external wastegate to mitigate the problem? Is what he is saying true? How would I be able to find out whether I have boost creep or not. Thanks.
    • 0 of 0 people found the following answer helpful

      A:  Boost creep is only an issue on catless downpipes and should not be a problem with a catted downpipe. The internal wastegate does help control boost levels but it should not be required for your setup.

      Nick S. @ RallySport Direct 3 years ago  
        
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  • Q: compatibility  mikiem3 years ago

    Hello, so I purchased this downpipe as well as an aem cold air intake. A professional tuner told me that this downpipe along with the aem cold air intake would cause boost creep. Is this true? He told me that I would have to buy an external wastegate to mitigate the problem? Is what he is saying true? How would I be able to find out whether I have boost creep or not. Thanks.
    • 0 of 0 people found the following answer helpful

      A:  Boost creep is only an issue on catless downpipes and should not be a problem with a catted downpipe. The internal wastegate does help control boost levels but it should not be required for your setup.

      Nick S. @ RallySport Direct 3 years ago  
        
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  • Q: Fitting and other necessary parts  tabz993 years ago

    Hi guys! I have an N1 exhaust installed on my 2015 STi already, will I have any issues if I have this downpipe? What else do I need to order (parts) just so as not to have fitment issues during installation process? THANKS!
    • 0 of 0 people found the following answer helpful

      A:  This downpipe will bolt up directly to the N1 exhaust, and nothing else is needed for connecting this to your Invidia catback. It is recommended to purchase a new turbo to downpipe gasket and change or trim your stock turbo heatshield because the stock shield does not fit with this downpipe.

      Zach G. @ RallySport Direct 3 years ago  
        
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